• Atlanta History Photograph Collection (Atlanta History Center)
• Bill Wilson Photographs (Atlanta History Center)
• City of Atlanta, Department of Planning and Community Development
• Fred L. Howe 1895 Cotton States and International Exposition Photographs (Atlanta History Center)
• Georgia Archives Ad Hoc Collection
• Georgia Archives Historic Postcard Collection
• Georgia Archives Vanishing Georgia
• Google Earth
• Herbert H. Lee Photographs (Atlanta History Center)
• Kenneth Rogers Photographs (Atlanta History Center)
• Library of Congress Chronicling America Historic American Newspapers
• Library of Congress Geography and Map Division
• Library of Congress Prints and Photographs Division
• U.S. Geologic Survey Historical Topographic Map Collection

These three collections will get me started in Omeka:

• Georgia Power Company Land Records
• Library of Congress
• Atlanta History Center